Yukina Shiraha from Tateyama International High School chases after her mother Yokai who left like a storm after a three-person interview. In order to return the forgotten smartphone, her friend Mika Ogifu also goes to her mother's workplace, the Kurobe Institute. She successfully handed the smartphone to her mother in the lobby. While talking to the researchers, Minoru Aramata and others, a fireball suddenly flew in, and the shock wave shattered the window glass of the institute. In the foundation of the institute where the alarm sounded, unidentified invaders fought with the guards. Yukina, who was planning to take refuge underground, stopped at the strange light emitted by the cube in the laboratory. Mysterious ruins were discovered in the Tateyama Kurobe Gorge during the construction of the dam. The International Joint Kurobe Institute was established to study "Artifact". The heads of state from all over the world gathered at Tateyama International High School, where the children of the researchers were studying. The director of the institute, Yukina Shiraha, also went to school here. It was the summer of 2016, and a samurai woke up again. by:www.qimiyingshi.net